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 Grok 4xAI |  DeepSeek-R1DeepSeek |  Gemini 3.5 |  GPT-5OpenAI | |
|---|---|---|---|---|
| Vendor | xAI | DeepSeek | OpenAI | |
| Family | Grok | DeepSeek | Gemini | GPT |
| Release date | 2025-07-09 | 2025-01-20 | 2026-05-20 | 2025-08-07 |
| Context window | 256,000 tokens | 128,000 tokens | 2,000,000 tokens | 400,000 tokens |
| Parameters | — | 671B | — | — |
| Modality | text | text | text, vision, audio, video | text, vision, audio |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | — | Reasoning-focused open-weight model. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 82.8% | — | 88.9% | 85.1% |
| GPQA-D | 87.5% | — | 91.2% | 87.3% |
| HumanEval | — | — | — | 95.2% |
| Aider | 72.5% | — | — | 85.4% |
| AIME-25 | 86.1% | 79.8% | 96.1% | 91.0% |
| LiveCB | 65.3% | — | — | 74.5% |
| MMMU | — | — | 86.0% | 74.1% |
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Claude 4.8 Opusmax
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